St. Louis, MO
Platform engineers who build the infrastructure AI runs on. Crosscheck recruits AI Infrastructure & Platform Engineering candidates for contract, contract-to-hire, and permanent roles tied to St. Louis.
What We Place
Representative roles
Platforms and technologies
Our Approach
This editorial hiring guide starts with sourced St. Louis business context. St. Louis Development Corporation identifies geospatial technology, health care innovation, advanced manufacturing, and agricultural technology as drivers of the city economy. Those sectors give hiring teams separate data, security, production, and supply-chain settings for technical searches. A Platform Engineer brief should identify the internal users, supported workloads, infrastructure boundary, and service promise. Kubernetes or infrastructure-as-code keywords do not show whether a candidate can reduce delivery friction while preserving reliability and security.
Source platform engineers with experience at AI-native and cloud-first companies
Vet on IDP design, Kubernetes, GitOps, and developer experience tooling
Deliver shortlists within the agreed search timeline, candidates ready to interview
Permanent placements include a 90-day replacement guarantee, subject to the signed agreement.
Start the search
Include the business context, systems, delivery phase, work model, compensation, and interview timeline. A Crosscheck search lead will use that context to calibrate the role before sourcing begins.
Local Market Brief
List the paved paths the platform must provide, such as service templates, environments, secrets, observability, or deployment controls. Set adoption, uptime, support, and change-ownership expectations for the team that will use them. The three sourced St. Louis contexts below turn that scope into intake and screening decisions. They do not measure current vacancies, candidate supply, or Crosscheck client activity.
Editorial market scenario
Give candidates the integration, approval, audit, and change-management boundaries during the interview. Ask for comparable decisions from prior work. This is planning guidance, not measured local demand.
Editorial industry scenario
An industrial brief should show how software, data, and infrastructure connect to plants, equipment, schedules, quality, and frontline users. Confirm that this context applies to the employer before using it in the search.
Screening focus
Candidates are assessed on automation, observability, security, incident response, and the operating scale they have supported.
Published labor benchmark
BLS does not publish an occupation matching Platform Engineer. Crosscheck uses Software Developers (15-1252) as the closest published broad benchmark; it is not a count or pay estimate for this exact specialty.
BLS OEWS May 2025, published May 15, 2026
Published metro employment
9,820
BLS publishes a sizable metro employment estimate for the proxy occupation. The intake still needs to isolate the platform, delivery stage, and ownership required here. The estimate equals 7.321 jobs per one thousand across the metro workforce.
Employment concentration
0.67 location quotient
St. Louis, MO-IL reports a below-national employment concentration for this proxy occupation. Decide which requirements justify a wider regional or remote search.
Annual wage reference
$77,730 to $169,030
The metro median is 5% below the national Software Developers median. Do not use the gap to discount niche platform or domain experience. BLS reports a $129,030 median for the proxy occupation in St. Louis, MO-IL.
Hiring brief scenarios
These scenarios connect location context to role responsibilities. Use them as prompts to verify with the employer, not as measures of St. Louis demand, clients, or candidate supply.
Sourced geospatial technology context
A current St. Louis Development Corporation feature names geospatial technology as a driver of the city economy and describes T-REX as an innovation center that works with the National Geospatial-Intelligence Agency. Map the local operating context to platform isolation and access. Ask how the engineer would separate teams, data classes, and environments while keeping common services supportable. Geospatial systems can join imagery, sensor feeds, location records, analytical models, map services, access controls, and delivery partners across restricted and public data sets.
Evidence to request: Review a platform architecture with tenancy, identity, network, secret, and observability decisions tied to user needs. Define the geographic product, source data, coordinate and accuracy rules, security boundary, model or service interface, update cycle, and approving user.
Sourced health care innovation context
The same St. Louis Development Corporation source identifies health care innovation among the industries that drive the city economy. Define the developer workflow that needs improvement. Candidates should show how they measured build, deploy, provisioning, or incident steps before choosing a platform change. Health innovation work may cross research data, patient or member records, laboratories, devices, billing, workforce systems, access review, and formal release controls.
Evidence to request: Ask for a before-and-after developer workflow with measured steps, adoption evidence, and support cost. Name the care, research, product, or business process, record authority, protected data, integration path, validation evidence, downtime limit, and reviewer.
Sourced advanced manufacturing and agricultural technology context
St. Louis Development Corporation also names advanced manufacturing and agricultural technology among the industries that shape the city economy. State the reliability boundary between the platform team and application teams. Include upgrades, capacity, backups, incident routing, and deprecation in the role scope. These operations can connect product formulas or designs, equipment, plants, growers or suppliers, quality, inventory, warehouses, maintenance, traceability, and financial postings.
Evidence to request: Use an upgrade or outage scenario and require a maintenance plan, communication path, rollback, and ownership matrix. Trace one product from design or source through production, quality release, storage, shipment, accounting, exception handling, and change ownership.
Interview scorecard
Ask each candidate the same core questions. Score the evidence, ownership, and judgment in the answer instead of relying on job-title or keyword matches.
1. Platform Engineer: Kubernetes
Choose a Kubernetes decision from your work as Platform Engineer. Which constraint changed the design, and what evidence supported the result?
Use the answer to assess release windows, environment reliability, observability, recovery, and coordination with operating schedules. The manufacturing and operational systems context is an editorial scenario, not a measured claim about St. Louis.
2. Senior Platform Engineer: Helm
Describe project work you completed as Senior Platform Engineer involving Helm that did not follow the original plan. What did you own, and how did you correct it?
Use the answer to assess release windows, environment reliability, observability, recovery, and coordination with operating schedules. The manufacturing and operational systems context is an editorial scenario, not a measured claim about St. Louis.
3. Staff Platform Engineer: ArgoCD
For an ArgoCD system you supported, explain the handoff, operating limits, and measures used after launch. Where did your responsibility begin and end?
Use the answer to assess release windows, environment reliability, observability, recovery, and coordination with operating schedules. The manufacturing and operational systems context is an editorial scenario, not a measured claim about St. Louis.
Need the full Platform Engineer evaluation guide?
The role guide covers technical scope, interview questions, and evidence checks once, without repeating the same material on every city page.
FAQ
For qualified exclusive searches in our core disciplines, Crosscheck targets a first candidate slate within 48 hours after a completed intake. Contract placements include a 40-billable-hour replacement guarantee, and permanent placements include a 90-day replacement guarantee, subject to the signed agreement.
Local hiring brief
List the paved paths the platform must provide, such as service templates, environments, secrets, observability, or deployment controls. Set adoption, uptime, support, and change-ownership expectations for the team that will use them. The three sourced St. Louis contexts below turn that scope into intake and screening decisions. They do not measure current vacancies, candidate supply, or Crosscheck client activity. Define the developer users, self-service paths, runtime stack, deployment controls, reliability targets, support window, and roadmap. Recruit an individual when the employer owns those decisions; scope a team engagement when a vendor owns delivery and coverage.
Sources and methodology
Original Crosscheck visual
Each lane connects sourced regional context to a role-specific screening decision. The sources do not measure current candidate supply or Crosscheck client demand.
Review a platform architecture with tenancy, identity, network, secret, and observability decisions tied to user needs. Define the geographic product, source data, coordinate and accuracy rules, security boundary, model or service interface, update cycle, and approving user.
Ask for a before-and-after developer workflow with measured steps, adoption evidence, and support cost. Name the care, research, product, or business process, record authority, protected data, integration path, validation evidence, downtime limit, and reviewer.
Use an upgrade or outage scenario and require a maintenance plan, communication path, rollback, and ownership matrix. Trace one product from design or source through production, quality release, storage, shipment, accounting, exception handling, and change ownership.
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